PP vs Cardboard Dividers
Cardboard dividers crush under moisture and deform under load. PP corrugated dividers don't:
- 100% waterproof — survive wet product, ice, condensation
- Reusable hundreds of times — washable between cycles
- Consistent cell geometry — no compression over time
- FDA 21 CFR 177.1520 — safe for direct food contact
- US stock — no import wait, no minimum container order
Specifications
| Property | Value |
|---|---|
| Material | PP corrugated 4 mm |
| Sheet stock | 48×96 in — cut to order |
| Cell sizes | Custom to product dimensions |
| Colors | White, black, custom |
| Compliance | FDA 21 CFR 177.1520, USDA |
| Lead time | 2–5 days from US stock |
| MOQ | 500 pcs standard |
Divider Applications
PP corrugated dividers are specified wherever product-to-product contact causes damage:
- Glass bottles and jars — cell dividers prevent breakage
- Fresh produce — individual fruit/vegetable separation
- Pharmaceutical — vial and bottle partitioning
- Automotive parts — component isolation, no metal-to-metal contact
- Electronics — anti-static grade available
- Cosmetics — unit separation in retail display boxes
How PP Corrugated Dividers Are Made
Dividers start as flat 48×96 in PP corrugated sheet stock, then:
- Cut to the box interior height and width
- Slotted at regular intervals to half-depth
- Assembled by interlocking slots — no adhesive needed
- Cell count and size configured to product dimensions
Custom tooling available for high-volume orders. Standard sizes ship from US stock within 2–5 days.
Need PP Corrugated Dividers? Get a Quote from Elipacko
US-stocked PP corrugated divider material — custom cut, food-safe, ships fast. Elipacko manufacturer direct pricing.
Request a Quote at Elipacko.comThe Complete Guide to Corrugated Plastic Boxes
Polypropylene corrugated corrugated plastic boxes represent the most significant upgrade available to procurement teams still running single-use cardboard. The material is waterproof, structurally consistent, forklift-compatible, and designed for 50-100 reuse cycles. For industries in industrial, retail, agriculture, cold chain, the switch from cardboard to PP corrugated typically pays for itself within one production season.
This guide covers everything buyers need to know about sourcing, specifying, and getting maximum value from corrugated plastic boxes: material specs, industry applications, import duty considerations, and how to evaluate suppliers in a market full of resellers moving low-quality imports.
Why PP Corrugated Outperforms Cardboard
The comparison between PP corrugated and cardboard isn't close in any environment where moisture, temperature variation, repeated use, or forklift handling is involved. Here's the breakdown:
| Property | PP Corrugated | Cardboard |
|---|---|---|
| Water resistance | 100% waterproof | Fails rapidly |
| Reuse cycles | 50-100 | 1 |
| Forklift compatible | Yes (designed for it) | Limited, degrades fast |
| Cleanable | Fully washable | No |
| Food-grade options | FDA 21 CFR compliant | Limited |
| ISPM-15 required | No | No (but wood components do) |
Specification Guide for Corrugated Plastic Boxes
Choosing the right corrugated plastic boxes requires matching wall thickness, flute profile, and resin grade to your specific application. Key specifications:
- Wall thickness: 4mm for light duty, 6mm for standard, 8mm for heavy duty, 10mm for bulk container applications
- Flute type: B-flute for top-load stacking strength, C-flute for balanced performance, X-flute (double wall) for maximum rigidity
- Resin grade: Standard PP for ambient environments, high-density PP for cold chain and freezer applications down to -40°F
- Food-grade: FDA 21 CFR-compliant virgin PP for direct food contact — required for produce, poultry, seafood, and processed food applications
- Custom dimensions: Elipacko cuts to custom sizes with lead times varying by volume — contact directly for specifications